Photograph-burnishing machine



(No Model.)

W. G. BNTREKIN.

PHOTOGRAPH BURNISHING MACHINE. No. 355,923; Patented Jan. 11, 1887.

'UNITED STATES PATENT Ormea VILLIAM G. ENTREIUN, OF PHILADELPHIA, PENNSYLVANIA.

PHOTOGRAPH-BURNISHING MACHINE.v

SPECIFICATION forming part of Letters Patent No. 355,923, dated January 11, 1887.

Application filed December 10, i886. Serial No. 221.168.

delphia, Pennsylvania,have invented certain Improvements in Photograph-Burnishing Machines, of which the following is a speciiication.

The object of my invention is to provide simple means for readily and accurately adjusting the movable roll of a photograph-burnishing machine, and this obj ect I attain in the manner which I will now proceed to describe, reference being had to the accompanying drawings, in which- Figure l is a transverse section, partly in elevation, of sufficient of a burnishingmachine to illustrate my improvements, Fig. 2 showing, in perspective, the detached parts to which my invention particularly relates, and Fig. 3 being a transverse section, partly in elevation and on an enlarged scale, on the line l 2, Fig. 1.

A A represent parts of the opposite iixed end frames of a burnishing-niachine, in which are formed bearings :for the spindles b of the lower or burnishing roll, B, of the machinel and guides for the boxes a, carrying the journals d ofthe movable upper feedroll, D, these rolls being suitably geared together by means of spur-wheels e e at one end, and one of the spindles ofthe lower roll being provided with an operating-handle, j", a portion of which is shown in Fig. l. A cross-bar, F, forms part of the ixed i'rame of the machine, and serves to connect the upper ends of the end frames, A.

rllhe boxes a of the upper roll, D, are acted upon by wedges G G, both facing in the same direction, the backs of these wedges bearing against set-screws M, adapted to threaded openings in the fixed frame of the machine, and the bottoms of the wedges having their bearings upon the inclined faces oi' recesses g in the tops of the boxes a, whereby, when the wedges are moved forward, the boxes will be depressed, and when said wedges are retracted the bones will be raised under the action of springs h. Each wedge has an inwardly-projecting arm, G, the inner ends of these arms overlapping each other, and one arm having longitudinal slots 'i for the reception of the stems of confining-bolts m, which are threaded for adaptation to threaded openings a in the other bar.

(No model) When the bolts m are tightened, the two bars G are iirmly confined together laterally, and hence forml a rigid connection between the opposite wedges, so as to insure the simultaneous operation oi' said wedges; but upon loosening the bolts m the wedges and their bars can be adjusted longitudinally in respect to each other, and any desired independent setting of the wedges thereby permitted.

YV hen it is not desired to adjust the wedges by slipping the bars G' upon each other, the adjustment may be effected by means of the set-screws M.

Each of the bars G has ribs so as to impart to it the desired rigidity and prevent itprojecting wing, H, which is slotted for the reception of a stein, I, the vertical conne ment of which in the slotis effected by atransverse pin, s,.w'hile collars t on the stem on opposite sides of the wing H serve to confine the stemlongitndinally to said wing.

The stein l has at the outer end an operating-wheel, J, and the inner end ofthe stem is threaded for adaptation to a threaded opening, w, in the adjacent wedge G, so that by turning the stein in one direction or the other ythe wedges may be simultaneously advanced or retracted to effect the vertical adjustment ofthe roll D.

I claim as my inventionl. rIhe combination of the frame and movable roll cfa burnishinginachine.with wedges acting on the boxes of said movable roll, wedge-connecting bars having overlapping ends, and means ibrsecuring said overlapping ends ofthe bars together in different positions, al1 substantially as specified.

2. The combination of the fixed frame of the machine, the movable roll and its boxes, wedges acting on the latter and having inwardly-projeeting ribbed bars with overlapping ends, and means for securing said overlapping ends together, all substantially as specilied.

3. The combination of the fixed frame, the movable roll and its boxes, the opposite wedges, both facing in the same direction, a rigid connection between the two wedges, and a screw-stem longitudinally confined to the IOO v fixed frame and adapted to a threaded openupon the boxes of said roll and bot-h facing in ing in one of said Wedges, all substantially as specified.

4. The combination of the xed frame ofthe machine, the movable roll and its boxes, the Wedges acting on said boxes and both facing in the same direction, a rigid transverse bar connecting said Wedges and adjustable as to its length, and means forimpartinglongitudinal movement to one of the boxes, which movement is transmitted through the rigid connection to the other box, all substantially as specified.

5. The combination of the frame and mov-V able roll of the machine, the Wedges acting the same direction, a rigid connection between the Wedges, an adjusting device effecting a simultaneous adjustment of both Wedges, and a set-screw acting upon each Wedge to adjust it independently of the other, all substantially as specified.

In testimony whereof Ihave signed my name to this specification in the presence of two subscribing Witnesses.

WILLIAM D. CoNNnR, HARRY SMITH. 

